【摘要】 <正> 在球粒陨石化学组成的研究中,经过试验我们建立了测定各化学元素的分析流程,测定了九个球粒陨石样品中各元素的含量,根据测定结果论证了它们各自所属的化学群、氧化还原趋势以及某些共同特征。更多还原

【Abstract】 In this paper,not only has an analytical procedure to determine various chemical elements in chondrites been developed,but also their contents in 9 chondrites have been determined.In addition,chemical parameters were calculated.According to their chemical composition and parameters,we can come to the following conclusions:1.The 9 chondrites belong to 3 chemical groups,H (Lunan,Tuochi,Xinyang),L (Jartai,Xiwu,Rugao,Lishui,Guangrao) and LL group (Dongtai).2.Fe0 and the ratio of FeO/Fe decrease from H to LL,but FeO and FeS increase,It means that the degree of oxidation is growing higher.3.The contents of SiO2 also increase from H to LL whereas TFe,Ni and Co decrease.The variation rule can be used as the reference criteria to distingush the chemical groups of chondrites.4.The contents of SiO2,MgO,FeO,Fe0 FeS and TFe in chondrites from Eugao determined earlier have been corrected.更多还原